Rope-socket.



Patented Mar. 17,y 1914.

ROPE SOCKET.

0. SGHELLING & A. A. PHILLIPS.

APPLICATION HLBD An. 22, 1918.

1 W www w w M OSCAR SCHELLING AND ARTHUR A. PHILLIPS, OF LOS ANGELES,CALFORNIA ale ASSIGNORS OE ONE-THIRD T0 GEORGE GARTLING, OF LOS ANGELES,CALI- FORNIA.

ROPE-SOCKET.

Losowo.

To all 'wh-om it may Gomera:

Be it known that we, Osoan SCHELLING and ARTHUR A. PHILLIPs, citizens ofthe United States, residing at Los Angeles, in the county of LosAngeles, State of California, have invented new and useful 1mprovementsin Rope-Sockets, of which the following is a specification.

This invention relates to a swivel ratchet rope socket of a type for usein connection with wire drill cables; and the invention consist incertain specific improvements in the ratchet and pawl mechanism wherebywe attain simplicity and durability of construction. There are otherobjects .which will appear in the following specification.

One of the main features of our invention is the construction of theratchet teeth inte grally with the mandrel in which the ropeis held, theteeth of the ratchet being cut directly in the mandrel. This mandrel isrot-atively held in the body of the rope socket, end thrust ballbearings being preferably provided to obviate friction and to allow easyrotation of the tools connected to the socket. The pawls or dogs whichengage the ratchet. are mounted directly in the body in such manner asto have ample bearing surfaces therein, and the whole construction issuch as to afford great strength and soldity.

The details of these features will be understood from the followingspecification, reference being had to the accompanying drawng, in which:

Figure 1 is an exterior view of our improved rope socket. Fig. 2 is alongitudinal section taken as indicated by line 2-2 of Fig. 1. Fig. 3 isa view, partly in longitudinal section, showing the construction of themandrel in which the rope is held. Fig. el is a cross section taken asindicated ,by line 4-4 of Fig. 2. Fig. 5 is a cross section taken asindicated by line5-5of F ig. 2.-

In the drawings the numeral 10 may designate the body of ourimprovedrope socket constructed in accordance with our designs andhaving an interior bore 11 adapted to receive and hold the mandrel 12.The man- Specification of Letters Patent.

Application filed April 22, 1913.

Patented Mar. 17, 1.914. serial No. 782;?98.

drel 12 is co-mprised in a lower cylindrical portion 13 and an uppertube or sleeve 14 whlch eXtends to the upper end of the body 10 throughreduced bore 11ZL therein. The sleeve 1d has a longitudinal bore 15through which the cable 16 is passed as shown in Fig. 3. The part 13 ofthe mandrel 12 contains an enlargement 15?L of the bore 15; and theknotted or expanded end 16a of the cable 16 is held in this expandedportion 15a as in ordinary usage.

The mandrel is contained within the body 10 in the manner shown in Fig.2 and an end thrust ball bearing 20 is placed between the `annularshoulder 21of` the body and the annular shoulder 22 of the inandrel.This depending from the rope socket and allows the body of there-pesocket and the tools to turn freely in the direction allowed by theratchet mechanism.

The ratchet mechanism is colnprised in ratchet teeth 25 out around themandrel 12, being formed integrally therein for strength and durability.The pawls for the ratchet teeth 25 are shown at 26. Pawls 26 arepreferably rectangular or square in section and set in square openings27 in insert 10a in body 10. They are each provided on their inner endswith a suitable tooth 28 to engage the ratchet teeth 25; and Springs 29press them into said engagement. The inserts 10a have square orrectangular openings in which the pawls are adapted to reciprocat'e; andthe pawls are thereby given broad bearing surfaces through which any andall strains are transmitted practically directly to the body of thesocket. The inserts are forced or pressed into place so that they form,to all intentsnp'arts of the body; but

i ized strain on the pawls.

they at all times rest solidly against surfaces of the body.

It will be seen that our construction provides for direct transmissionof any rotary strain from the body 10 through the pawls and the ratchetteeth to the mandrel 12. The pawls or dogs 26 are mounted in theirsquare openings so as to have ample bearing faces and so as to solidlyand strongly connect with the body 10. VVhen the tools depending fromthe rope socket tend to turn the socket in the direction indicated bythe arrow in Fig. 4:, the pawls slip easily over the ratchet teeth andallow the tools to turn; ,but when the tools have a tendency to turn inthe opposite direction, the pawls engage the ratchet teeth to preventsuch movement by locking the body 10 of the rope socket against rotationon the mandrel 12. We have shown a cable 6 in place in Fig. 3; and, itbeing assumed that the upper end of the cable is held from rotation, arotation of the lower end in the direction indicated in Fig. 3 will tendto twist the cable more tightly, while rotation in the oppositeJdirection would tend to untwist the cable.

It will be seen that the ratchet arrangement prevents rotation of thetools in the direction indicated in Fig. 3; that is, it looks the partsof the socket together when there is any tendency to rotate in.,thatdirection. But, should the tools rotate in the opposite direction, or inthe direction indicated in Fig. 4, then the pawls will slip easily overthe ratchet and will allow the tools to rotate without rotating themandrel 14 and without having any untwisting tendency on the cable.

VVhat we particularly wish to secure to ourselves in the followingclaims is our simple and strong ratchet construction, including theratchet teeth formed integrally in the mandrel in which the rope isheld, and 'also including the pawls mounted in the body of the ropesocket and having bearing faces which cause any strain to be transmitteddirectly between the body and the mandrel without causing any excessivelocal- By these means we are enabled to provide for long life of ourrope socket, having few parts to Wear and having no parts upon whichexcessive strains are imposed.

Having described our preferred form of invention, we claim:

1. A swivel rope socket, comprising an outer body having an interiorlongitudinal cylindrical bore, a rope receiving mandrel revoluble withinsaid bore, ratchet teeth cut 'directly on the mandrel, there beingapertures in the body extending radially outwardly from its inner boreadjacent the ratchet teeth on the mandrel, pawls fitting bearing betweenthe mandrel and the body, V

a set of ratchet teeth formed integrally on said mandrel, and pawlsmounted in apertures in the body with broad bearing surfaces between thepawls and body.

3. A swivel rope socket comprising an outer body having an interiorcylindrical bore, a rope receiving mandrel having a cylindrical portionrevolubly fitting Within said bore, an end thrust bearing between themandrel and body, ratchet teeth formed integrally in said mandrel andextending around the cylindrical part thereof, said teeth being parallelto the aXis of the mandrel, the said body having squared aperturesextending radially from its interior bore through its walls, pawls ofsquare cross section adapted to reciprocate in said apertures and toengage the said ratchet teeth at their inner ends, and Springs forpressing said pawls into engagement with the ratchet teeth.

4. A swivel rope socket comprising an outer body having an interiorcylindrical bore, a rope receiving mandrel having a cylindrical portionrevolubly fitting within said bore, an end thrust bearing between themandrel and body, ratchet teeth formed integrally in said mandrel andextending around the cylindrical part thereof, said *teeth beingparallel to the axis of the mandrel, the said body'having squaredapertures extending radially from its interior bore through its walls,pawls of square cross section adapted to reciprocate in said aperturesand to engage the said ratchet teeth at their inner ends, coiled Springsadapted to press the pawls into engagement with the ratchet teeth, andcap plates on the outside of the body to confine the springs.

5. A swivel rope socket comprising an exterior body having a cylindricalbore eX- tending from end to end thereof and enlarged at one end, a ropereceiving mandrel of cylindrical configuratlon similar to the bore ofthe body and adapted to revolubly 'fit therein, an end thrust ballbearing between the mandrel and the body, ratchet teeth cut directly inthe mandrel around its larger cylindrical surface, there being squareapertures opposite said ratchet teeth leading radially through the wallsof the body, pawls of square cross section adapted to reciprocate insaid apertures to and from the ratchet teeth, teeth on the inner end ofthe pawls to engage said ratchet teeth, cap We have hereunto subscrbedOur names this plates on the outside of the body covering 9th day ofApril 1913.

said apertures, and coled Springs arranged OSOAR SCHELLING. between saidcap plates and the pawls to ARTHUR A. PHILLIPS. 5 press the pawls intoengagement with the Wtnesses:

ratchet teeth. ELWooD H. BARKELEW, In wtness that We clam the foregoingJAMES T. BARKELEW.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, .Washington, D. 0.

